D2 Drive User Guide v1.8 6. Drive Tuning
HIWIN Mikrosystem Corp. 164
Fig. 6-21
Fig. 6-22
(4) Natural logarithm
The natural logarithm function is to express the X axis in the logarithmic form. It is only
applicable after the Fourier transform is completed. The related icon on the main toolbar
area is described as follows.
- : Express the X axis in the logarithmic form. It is only available after FFT is
completed.